COMEDK · Physics · 18. Capacitance
A metal plate of thickness \(d / 2\) is introduced in between the plates of a parallel plate air capacitor with plate separation of \(d\), then capacity
- A decreases 2 times
- B increases 2 times
- C remains same
- D becomes zero
Answer & Solution
Correct Answer
(B) increases 2 times
Step-by-step Solution
Detailed explanation
Given, \(t=\frac{d}{2}\) The capacitance is given by \(C=\frac{\varepsilon_{0} A}{d}\) For dielectric medium between plates, \(C^{\prime}=\frac{\varepsilon_{0} A}{d-t+\frac{t}{K}}\) For metal, \(K=\) infinity…
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